package com.imooc.controller;

import com.imooc.exception.SellException;
import com.imooc.form.CategoryForm;
import com.imooc.pojo.ProductCategory;
import com.imooc.pojo.ProductInfo;
import com.imooc.service.CategoryService;
import com.imooc.service.ProductInfoService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import javax.validation.Valid;
import java.util.List;
import java.util.Map;


@Controller
@RequestMapping("/seller/category")
public class SellCategoryController {

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private ProductInfoService productInfoService;


    @GetMapping("list")
    public ModelAndView list(Map<String,Object> map){
        List<ProductCategory> categoryList = categoryService.findAll();
        map.put("categoryList",categoryList);
        return new ModelAndView("category/list",map);
    }

    @GetMapping("index")
    public ModelAndView index(@RequestParam(value = "categoryId",required = false) Integer categoryId
            ,Map<String,Object> map){
        if(categoryId != null){
            ProductCategory category = categoryService.findOne(categoryId);
            map.put("category",category);
        }
        return new ModelAndView("category/index",map);
    }


    @PostMapping("save")
    public ModelAndView save(@Valid CategoryForm form,
                              BindingResult result,
                              Map<String,Object> map){
        if(result.hasErrors()){
            map.put("msg", result.getFieldError().getDefaultMessage());
            map.put("url", "/sell/seller/category/index");
            return new ModelAndView("common/error", map);
        }
        ProductCategory category = new ProductCategory();
        try {
            if(form.getCategoryId() != null){
                category = categoryService.findOne(form.getCategoryId());
            }
            BeanUtils.copyProperties(form,category);
            categoryService.save(category);
        } catch (SellException e) {
            map.put("msg", e.getMessage());
            map.put("url", "/sell/seller/category/index");
            return new ModelAndView("common/error", map);
        }
        map.put("url","/sell/seller/category/list");
        return new ModelAndView("common/success",map);
    }
}
